Simon pet



`SIMON Pli'rrns, or N'sw vonk, N. Y.

MACHINE FDR DRILLING STONE.

Specification of Letters Patent No. v1O,653, r;1ated March `14, 1854.

To all whom t may concern:

Be it known'that I, SIMON PETTES, ofthe city, county, and State of New York, havev invented a new and useful Improvement in Machines for Drilling Rock or other Substances; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this specification, of which- Figure l is a front elevation;` Fig. 2,2a

side elevation; Fig. 3, a perspective of the lifter; Fig. 4, ditto of the drill head.

The nature of my machine consists in constructing one for drilling rock, &c., of an exceedingly portable character, and by the arrangement of the operative parts giving certainty of action in the turning of the drill head, thus obviating the liability to jam or deface the lifter, while at the same time the diagonal rib on the face of the lifter serves the purpose ofa greater throw-than one placed radially from the shaft on which the lifter turns.

By the elbow form given my arms containing the boxes for the drill rod, a longer range is given the same, as the rodv may rise above the frame, as well as descend belowit: while by placing the windlass for raising the drill frame, &c., upon said frame, I am enabled to effect the descent of the drill in a regular manner by the stroke of the drill head, relieving the ratchet on 4the w'indlass shaft.

To enable others skilled in the art to make and use my invention I will proceed to describe its construction and operation, referring to the drawings of which- A, A, are' uprights on which the drilly frame slides and serving as guides, they are secured in a foot piece B B: C, C, the drill frame, on the upper part thereof is secured the windlass D D, the cords secured to the frame at e e pass over pulleys f, f, and'are wound on D when the drill is up: E a ratchet wheel on the shaft D: F the handles for turning said shaft: Gr a dog or pawl having its lower end bent at right angles, so that the drill head in its descent strikes it and relieves the ratchet, one notch: on the rising of the head the pawl is thrown into play by a spring Z) secured on the bolt 7L.' I the drill head; on its under side (see Fig. 4) any desired number of eccentric grooves are formed; in which the ribs on the lifter play: upon the edge of I, are vertical grooves K K Ain which the detent Lis forced by a spring d placed behind it: upon this detentIJ the drill :head slides in its descent, the object of which is to secilre'ltlie'clrill fr'om turning irregularly, or yflying back, the detent is worked by a bent arm against which the sidesof the lifter strike: M the lifter or tappets, secured. on the main shaft N, upon the rotation of Jwhich each arm lifts the drill head; on t-heface of each tappet is a diago-y nal rib a, the inner end projecting not as much as the outer one, so as Igradually to enter the grooves on the head, the sides of which it touches and thus gives the turnto ythe head, while the square shoulders, or the face Vof the lifter strikes the under surface of the head and lift it, thus reducing the wear thereof, while the `angular position of the rib a. gives a greater throw than could have been effected by a radial one; a helicalspring (or should one spring be deemed insufficient a second or third may be used concentric with the drillV rod) is placed bepose offly wheels, and a means of readyv transportation: when a blast is made, it is necessary to remove to a place of safety the.

machine; in so doing it being only required to change the uprights to a horizontal position; R, a back stay to steady the machine when at work, and t-he angle to be given the hole in the rock being effected by moving the footin or out, it is furnished with sliding rod and clamps: s s, the drill rod, T the bit or drill, V V shift-ing handles on the wheels P, P: when not in use, or in passing through narrow shafts they may beturned out of the way; X X stay or brace rods.`

The operation is as follows: The machine being in place, the drill stock is placed in the arms 0 0. If it is desired to use a two foot drill; raise the frame that height by turning the windlass D D: the wheels P P being rotated the lifter M strikes the lower side of the drill head as before described giving it the lift and turn; the descent of the head releases the windlass onenotch of l The under face of the drill head is slightly` beveled to facilitate the rising and working thereof.

By the construction of the tappets of the lifter D, with a radial rib (a) thereon I am enabled not only to raise the drill head, but

at the same time and With the same mechanism give the throw with great certainty, while the detent (L) catches, and on which the head also slides: thus obviating a practical difficulty, of uncertain throw from the jar affecting the pawl throw and detent of other drills.

lhat I claim as my invention and desire to secure by Letters Patent, ist So placig on the sliding frame C C the SIMON PETTES.

Witnesses: v

J. A. SMITH, JOHN F. CLARK. 

